Mechanism for the manufacture of cylindrical blanks and records for phonographs, graphophones, and the like.



PATENTED JUNE 16, 1908.. E. TRAYNOR, S. BURGESS & J. AMES.

MECHANISM FOR THE MANUFACTURE OF GYLINDRIOAL B LANKS AND RECORDS FOR PHONOGRAPHS; GRABHOPHONBS,..AND THE LIKE.

APPLICATION FILED FEB. 24, 1908.

Foa'rnn MANUFACTURE or C YL INbR'IGAL ism-inns t. ,P GR PHS. ,snarnornonns, AND}.

. such a manner as vto - factory manager, Essex, England,

UNITED T 'reererEm .Q EnivaRDifiinaY" on AND STEPHEN Bpnenss, or "LEYTONSTONE, "ii-Nor on I I -tnrronnnemxn- I I I Specification of To all whom it may concern:

Be {it known that we, EDWARD TnAYxon and STEPI-inNBu-RGEss, residents of 89 Melford road, Leytonstone, Essex, England, electrochemical en ineers, and JOHN AMES, of 3 Ashville road, Leyton, all citizens of the United Kingdom of Great Britain and Ireland, have invented a certain new and useful Improved Mechanism for the Manufacture of Cylindrical Blanks and Records for Phonographs, Graphophones, and the Like, of which the following is a s 'ecification, such as will enable others skilled in the artto which it a'pgertains tomake and use the same.

. ur invention consists in an apparatus for s inning cylindrical blanks and records for p ionographs, graphophones and other sound recording and sound reproducing instru 'ments by the use of centrifugal force, and has for its object the splashes, holesan prevention of spiral lines, c other faults.

Inthis apparatus a shell is used, tapered in toconveniently accommodate and center the mold or matrix and also prevent the vibration which invariabl produces faulty blanks and co glsmifil'is either screwed onjtehed on tothe base and furnished ifitna'perforated annular top, or it is' 'permanently attached to the base and fitted with a perforatedcap held in position by a clutch or screw or in any other conven- .vided with ient manner.

With the foregoing and other objects in view, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

. In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, in which- Flgure 1, shows a sectional elevation of our device; and Fig. 2, showsa view of a platform It, with the ball race in vertical position.

In these drawings, a, is a fixed support with a tubular socket b. A ball race 0, is applied to the to of the support a, and forms a cover for the all race. he shell e, is roan annular cap f, having a ho e in its center. Arnold or matrix g, is applied to Letters Patent. i Patented June 16, 1908.

Application filed February 24, 1908. Serial No. 417,477. 7

disk h, is interposed between the cap and the mold or matrix. Below the mold or matrix g, we place a disk i, forming a temporary bottom for the mold or matrix. A circular latform 7c, is secured to the end of a rod Z,

serves to lift the platform when the cap f, is removed. The rod Z, is provided with an enlargement n, on its end which is designed to abut the hollow spindle g, said hollow spindle having a fixed pulley o, and a loose pulley p, thereon. The shell 6, is also secured to the upper end of the hollow spindle so that the said shell is rotated as the hollow spindle is rotated.

r, is a lower ball race and s, s, are adjusting nuts.

u, is a bench or table through which the tubular socket 12, forming an extension of the support a, rojects,'and t, t, are air vents in the walls 0 the shell.

' The method of using the device is obvious.

poured in while the shell and matrix are rap idly rotaiing nkssoon as the wax is properly .set tlifcap and top disk areremoved, when the platform rises and the matrix or mold can be withdrawn without injury to the record or blank.

We are aware that it has already been proposed to make records by pouring molten wax into a rapidly revolving mold and we do not claim this principle broadly but only the improved means of carrying same out, includmg the top and bottom disks, the rising plat form for removing the mold and the general. mounting of the device.

We claim 1. A. mechanical device for producing blanks and records for phonographs, graphophones and the like, consistin of a support, a shell, a mold within the shel top of the mold, a disk at the bottom of the mold, a cap'for the mold, a platform, a hollow s indle for rotating the shell, a rod in the spindle adapted to project the mold, and a spring for holding the rod normally projected.

2. A mechanical blank and records for phonogra hs, graphophones and the like, consisting o a support, a shell, a mold within the shell, a hollow spin-- dle connected to the shell, a rod slidable in the interior of the shell and the perforated the hollow spindle and having its end enterand the rod is encircled by a spring 'm, which a disk at the 1G0 device for producing ing the shell, a spring for holding the rod nor- I phones and the like consisting of a; hollow 15 mally projected, and means for rotating the shell, 'eans for rotating the shell, a mold hollow spindle. within the shell, an apertureddisk at the to .3. A mechanical device 7 for producing of the mold, a; disk at the bottom of the mol blank and records for phonogra 'hs, graphoand a cap for the mold. phones-and the like, consistin 'o asup ort, a, In Witness whereof we have hereunto set 20 shell rotatable thereon, a hol 0W spin le deour hands in presence of two Witnesses. pendin from the shell through the support,- I

means or rotatin the hollow spindle, arod slideble in the hol OW spindle adapted to en- JOHN AMES' ter the shell, and a spring encircllng the rod and normally projectln-g the same; I Witnesses: v 4. A mechanical device for producing I HENRY FAIRBROTHER,

blank and records for phonographs, grapho-.l -J0'HN ALDRIDGEF 

